Calculate and record the average density of a penny (in g/mL) that is made after 1982. 95 percent copper and 5 percent zinc made up the composition of pennies before 1982

Q: What is the volume of a sample if the mass is 167.85g and the density is 1.8g/cm^3?

A: Given :-  Mass of sample = 167.85 g  Density = 1.8 g/cm3  To be calculated :  Volume of sample

Q: 3. If you found a gold-colored cube of metal that measured 17.5 cm on a side in a treasure chest in…

A: Given the side length of the gold-colored cube of metal, a = 17.5 cm Density of gold, d = 19.30…

Q: (3.20×10^2)(2.72×10^−3) (2.918×10^−3)(57.0)   Above is listed as a fraction   Express your answer…

A: Interpretation -  To express the answer in the correct number of significant figures in the given…

Q: At what temperature is the density of water at its maximum? 0o°c 04°C O 25°C -40°C O-273°C

A: The density of water depends on temperature of water. As temperature decreases the density of water…

Q: The diameter of a hydrogen atom is 212 pm. Find the length in kilometers of a row of 6.02 * 1023…

A: Record the given data, Diameter of a hydrogen atom = 212 pm. Diameter of ping pong ball = 4 cm…

Q: The diameter of a hydrogen atom is 212 pm. Find the length in kilometers of a row of 6.02x10^23…

A: Record the given data, Diameter of a hydrogen atom = 212 pm. Diameter of ping pong ball = 4 cm…

Q: Table salt contains 39.33 g of sodium per 100 g of salt. The U.S. Food and Drug Administration (FDA)…

A: Given,Table salt contains 39.33 g sodium per 100g of salt.  The U.S FDA recommends that adult…

Q: What is the density of common antifreeze in units of g/mL? A 4.00-qt sample of the antifreeze weighs…

A: Density of a material is the mass of the material per unit volume of the material. Density indicates…

Q: Aluminum has a density of 2.70 g/ml. Calculate the mass (in grams) of aluminum having a volume of…

A: Given :Density of Aluminium = 2.70 g/mLVolume of the given sample of Aluminium = 379 mL

Q: The melting point of an unknown solid is determined to be 32 °C. What is this temperature on the…

A: Temperature is generally expressed in degrees celcius (°C)  For example :-  Room temperature = 25°C…

Q: Density of substance can be express in which of the following units? 1.cm^3 2. g/cm^3 3. ML 4.…

A: Density (d) :-  Density of a substance is defined as the ratio of mass of the substance to the…

Q: T added 3 kg of water to my Tish tank.

A: Water density =1  Water in kg and in litre will be same.  1st option : Kilogram of mass , but here…

Q: Calculate the density of a cube in the units of g/cm3 that has the density of 4.182g/in3  Use…

A: Rule for significant figure in Mathematical operation:(1) Addition and Substraction round by  the…

Q: Graphite and diamond are both made of pure carbon. Graphite has a density of 2.266 g cm ^-3 and…

A: The density formula is as follows,

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: density of object 17mg/cL converted into g/L

A: The objective of this question is to convert the density of an object from milligrams per centiliter…

Q: A cube of plastic 1.3x10^-5 km on a side has a mass of 2.1 g. What is its density in g/cm^3

A: Given: Side of Cube = 1.3×10-5 km Mass of cube = 2.1 g

Q: Convert 2.554 mg/mLmg/mL into pg/mLpg/mL.

A: Density is defined as the mass per unit volume. It is represented by. The relation for density is…

Q: 8.27x10^24 particles of hydrogen bromide weigh how much? round answer to 2 decimal places.

A: According to the question, The number of particles for the Bromide is given by  = 8.27×1024 particle…

Q: An experimenter has weighed a penny 6 times in units of grams as reported below. 2.224842 3.168283…

A: The objective of this question is to calculate the average weight of a penny based on the given…

Q: Polyethylene terephthalate (PET) is used in plastic water bottles. A water bottle has a mass of 14.0…

A: Given data,  Mass of plastic water bottle = 14.0 g  Density = 1.38 g/cm3

Q: Water has a known density of 0.997 g/mL at room temperature. Calculate the percent error in the…

A:

Q: Convert the area of the circle to um2 (micrometer square). Follow the format provided in the image…

A: Conversion of the given measurement according to the given sample ---

Q: The boiling point for liquid nitrogen is 77 K. What is the temperature in degrees Fahrenheit?

A: Relation between 0C and K is,   0 0C = 273 K and, relation between 0C and 0F is , C/5=(F-32)/9

Q: Penny sizes are the same before and after 1982. What can you say about the density of pennies before…

A: Penny sizes are the same before and after 1982, the density of pennies should have the same before…

Q: Consider the following: If you have 100 grams of water (density: 1.0 g/mL) and 100 grams of vodka…

A: Density  = mass / volume.  From this equation  we can see that if we keep mass constant than Density…

Q: table salt has a density of 2.16 g/ml. if your doctor says you should limit your intake to 3.75 in a…

A: Given the density of table salt, d = 2.16 g/mL  The required conversion factor from density is: 1 mL…

Q: A 76.00 Pound flask of mercury cost is $153.50. The density of mercury is 13.534 g/cm3. Find the…

A: The conversion factor for converting pound unit into grams is given as:1 Pound = 453.59 g The…

Q: One cubic meter 1 m³ of aluminum has a mass of 2.70×10³ kg.and 1 m³ of iron has a mass of 7.86×10³…

A:

Q: A 15.630 gg milk chocolate bar is found to contain 9.815 g of sugar. What will be the amount of…

A: Given : Mass of sugar = 9.815 g And mass of bar = 15.630 g The mass of reduced bar = 4.000 g

Q: Consider how cubic inches cubic centimeters and milliliters compare in size to each other how would…

A: Cubic centimeters, milliliters and cubic inches all are units of volume. They are interconvertible.

Q: 555mm^3(Cubed) to cm^3(Cubed)

A:

Q: Identify the prefix that defines each power of ten. 10%: 10%: 10-² 10-³ 10-6:

A: Prefixes are easier to write and pronounce than powers of 10.

Q: Complete the following train track to convert 80965 centimeters to ft. 1 ft = 12 in     2.54 cm = 1…

A: Consider the given information is as follows; 1 ft = 12 in     2.54 cm = 1 in     5280 ft = 1 mi…

Q: Is a meter about an inch, a foot, a yard, or a mile?

A: Answer 1: 1 metre = 39.37 inch 1 foot = 12 inch ⇒ 1 metre = 39.37 inch1 × 1 foot12 inch⇒ 1 metre =…

Q: The density of a solid is (7.40x10^0) g/mL. What is this density in units of cg/L?  Hint: Break…

A: We know that 1g/ml =100000cg/L or 105 So 7.40×100 g/ml = 7.40×105cg/ml

Q: Length of foil Width of foil 13.10 cm 9.50 cm 9.745 g Mass of foil Use the data in the table to…

A: Given the mass of foil, m = 9.745 g density of foil, d = 2.6989 g/mL Conversion factors: 2.6989 g =…

Q: coin is made of 10%(by weight) of copper. this coin has diameter of 10 mm and thickness of 2 mm and…

A:

Q: What is the mass of an object with a density of 2.3 g/cm3 and a volume of 3.54 cm3?

A:

Q: How many sig figs in this number?   1.76000 x 106

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.